import tkinter
import threading
import datetime
import time

app = tkinter.Tk()

app.overrideredirect(True)

app.attributes('-alpha',0.9)

app.attributes('-topmost',1)

app.geometry('110x25+100+100')
labelDateTime = tkinter.Label(app)
labelDateTime.pack(fill=tkinter.BOTH, expand=tkinter.YES)
labelDateTime.configure(bg = 'gray')

X = tkinter.IntVar(value=0)
Y = tkinter.IntVar(value=0)

canMove = tkinter.IntVar(value=0)

still = tkinter.IntVar(value=1)

def onLeftButtonDown(event):

    app.attributes('-alpha',0.4)

    X.set(event.x)
    Y.set(event.y)

    canMove.set(1)

labelDateTime.bind('<Button-1>', onLeftButtonDown)

def onLeftButtonMove(event):
  if canMove.get() == 0:
       return

  newX = app.winfo_x()+(event.x-X.get())
  newY = app.winfo_y()+(event.y-Y.get())
  g = '110x25+'+str(newX)+'+'+str(newY)
  app.geometry(9)

labelDateTime.bind('<B1-Motion>', onLeftButtonMove)

def onLeftButtonDown(event):
  still.set(0)
  t.join(0.2)

  app.destroy()

labelDateTime.bind('<Button-3>', onLeftButtonDown)


def nowDateTime():
  while still.get() == 1:
    now = datetime.datetime.now()
    s = str(now.year)+'-'+str(now.month)+\
        '-'+str(now.day)+' '
    s += str(now.hour)+':'+str(now.minute)+\
        ':'+str(now.second)

    labelDateTime['text'] = s

    time.sleep(0.5)

t = threading.Thread(target=nowDateTime)
t.daemon = True
t.start()

app.mainloop()
